Like I wrote over at output_format, judging by the code output_format is not supported by the TRT_RTX backend, so nothing I can do there.
Cu Selur
At least there's 0326 ver available, and 0606 works in TensorRT, I'll just wait for any future change, thanks again!

as a side note: there's a new vs-mlrt release over at:
https://github.com/AmusementClub/vs-mlrt/releases
But I can't download it since for some reason, the last few days I can't get more than 250kByte/s from github (and some other sites) and none of the larger downloads finishes. Whenever I can download the files sucessfully, I can create a new vs-mlrt-add-on release.
Cu Selur
dl speed currently looks ok at my place, if you'd like to create the new ver and give it a test before going to festival, I'll dl and upload to buzzheavier. Does
v16.1.test1 the version u need? all of them?
Ne, hurry from my side will try it on the weekend again.

Hybrid_dev_2026.06.25-152245 + VapoursynthR77_torch_2026.06.21 + original vs-mlrt_2026.06.25: same here, works fine for TRT, but breaks on TRT_RTX.
With
https://pastebin.com/BcmJLgzz updated vsmlrt.py: TRT and TRT_RTX both work fine.
We'll see what the vsmlrt folks think about the changes.
